Coke Formation during Thermal Decomposition of Methylcyclohexane by Alkyl Substituted C-5 Ring Hydrocarbons under Supercritical Conditions
DC Field | Value | Language |
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dc.contributor.author | Kim, Joongyeon | - |
dc.contributor.author | Park, Sun Hee | - |
dc.contributor.author | Lee, Chang Hun | - |
dc.contributor.author | Chun, Byung-Hee | - |
dc.contributor.author | Han, Jeong Sik | - |
dc.contributor.author | Jeong, Byung Hun | - |
dc.contributor.author | Kim, Sung Hyun | - |
dc.date.accessioned | 2021-09-06T17:14:33Z | - |
dc.date.available | 2021-09-06T17:14:33Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-08 | - |
dc.identifier.issn | 0887-0624 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107806 | - |
dc.description.abstract | In this study, a mechanism for coke formation of methylcyclohexane (MCH) was investigated by sampling products in a batch type reactor during thermal decomposition. Alkyl substituted C-5 ring hydrocarbons, which have a 5-member ring structure with alkyl groups as side chains, were the major products of thermal decomposition of MCH before coke formation (below 465 degrees C). The composition of alkyl substituted C-5 ring hydrocarbons gradually increased without any decrease during the reactions before coke formation. The composition of alkyl substituted C-5 ring hydrocarbons decreased after considerable increase, when coke formation occurred as 0.084 g coke/ml MCH for 10 h at 465 degrees C. Coke was formed via an increase in polycyclic aromatic hydrocarbons (PAHs). Based on this result, it was hypothesized that the abundance of alkyl substituted C-5 ring hydrocarbons caused the formation of PAT-Is and coke. To identify the role of alkyl substituted C-5 ring hydrocarbons on coke formation, thermal decomposition of MCH with 1,2,3,4-tetrahydroquinoline (THQ) was performed. THQ was used as the hydrogen donor, which inhibited coke formation. When coke formation was completely inhibited with 5.0 wt % THQ at 465 degrees C, the composition of all alkyl substituted C-5 ring hydrocarbons decreased compared to the experiment without THQ In addition, PAHs were not completely formed throughout the reaction. These results demonstrated that an abundance of alkyl substituted C-5 ring hydrocarbons caused the formation of PAHs, which were precursors for coke under supercritical conditions. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | POLYCYCLIC AROMATIC-HYDROCARBONS | - |
dc.subject | HIGH-TEMPERATURE STABILIZERS | - |
dc.subject | CYCLOHEXANE OXIDATION | - |
dc.subject | PRODUCT DISTRIBUTION | - |
dc.subject | JET FUELS | - |
dc.subject | PYROLYSIS | - |
dc.subject | MECHANISM | - |
dc.subject | MIXTURES | - |
dc.subject | PRESSURE | - |
dc.subject | CRACKING | - |
dc.title | Coke Formation during Thermal Decomposition of Methylcyclohexane by Alkyl Substituted C-5 Ring Hydrocarbons under Supercritical Conditions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Sung Hyun | - |
dc.identifier.doi | 10.1021/ef3007678 | - |
dc.identifier.wosid | 000307494300057 | - |
dc.identifier.bibliographicCitation | ENERGY & FUELS, v.26, no.8, pp.5121 - 5134 | - |
dc.relation.isPartOf | ENERGY & FUELS | - |
dc.citation.title | ENERGY & FUELS | - |
dc.citation.volume | 26 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 5121 | - |
dc.citation.endPage | 5134 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | POLYCYCLIC AROMATIC-HYDROCARBONS | - |
dc.subject.keywordPlus | HIGH-TEMPERATURE STABILIZERS | - |
dc.subject.keywordPlus | CYCLOHEXANE OXIDATION | - |
dc.subject.keywordPlus | PRODUCT DISTRIBUTION | - |
dc.subject.keywordPlus | JET FUELS | - |
dc.subject.keywordPlus | PYROLYSIS | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | MIXTURES | - |
dc.subject.keywordPlus | PRESSURE | - |
dc.subject.keywordPlus | CRACKING | - |
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